The muaythai tournaments at the 2025 World Games in Chengdu, China were held from 8 to 10 August 2025 at the Sichuan Provincial Gymnasium. It was the third time of muaythai including in the World Games.
A total of 48 muaythai practitioners from 29 National Olympic Committees (NOCs) competed across six weight categories, with three divisions per gender.
The number of weight classes for both men and women was reduced from six to three while ensuring full gender equality. In the men's competition, the light middleweight, welterweight, light heavyweight, and heavyweight classes were removed. Meanwhile, in the women's competition, the flyweight, featherweight, and light welterweight classes were eliminated. Additionally, the men's cruiserweight class was introduced for the first time.
Men will contest matches in these three weight classes:
Women will contest matches in these three weight classes:
A total of 48 muaythai practitioners could qualify for muaythai at the 2025 World Games. Each National Olympic Committee (NOC) could enter a maximum of three muaythai practitioners (one in each division). Host nation China has reserved a spot in each of all six events.
The following National Olympic Committees (NOCs) earned spots to compete, with the number of athletes in parentheses. 48 athletes from 31 NOCs are expected to participate. Host nation China are the only delegation to qualify the maximum number of entries (6 athletes total).